Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
200069moderately pollutedgood151excellent
190068moderately pollutedgood141excellent
180059lightly pollutedgood141excellent
170062moderately pollutedgood141excellent
160073moderately pollutedgood151excellent
150062moderately pollutedgood151excellent
140060lightly pollutedgood161excellent
130066moderately pollutedgood151excellent
120062moderately pollutedgood141excellent
110065moderately pollutedgood151excellent
100063moderately pollutedgood151excellent
090080moderately pollutedgood141excellent
080081moderately pollutedgood131excellent
070061moderately pollutedexcellent121excellent
060059lightly pollutedexcellent111excellent
050068moderately pollutedgood151excellent
040071moderately pollutedgood171excellent
030069moderately pollutedgood191excellent
020095heavily pollutedgood201excellent
010099heavily pollutedgood201excellent
000077moderately pollutedgood201excellent
230078moderately pollutedgood181excellent
220070moderately pollutedgood161excellent
210066moderately pollutedgood161excellent